.editor{display: inline-block;width:30px;height:30px;border:2px solid #01AAED;position: relative;}
.editor:after{position: absolute;content: '';background:#fff;width:8px;height:8px;top:-2px;right:-2px;z-index:1}
.editor:before{position: absolute;content: '';height:30px;width:2px;border:2px solid #01AAED;border-radius:2px 2px 50% 50%;-webkit-transform:rotate(45deg);-moz-transform:rotate(45deg);-o-transform:rotate(45deg);-ms-transform:rotate(45deg);transform:rotate(45deg);top:-13px;right:0;z-index:2}